<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="css/rest.css"/>
    <link rel="stylesheet" href="css/icon.css"/>
    <title>Document</title>
</head>
<body>
    <div class="icon-all">
        <!-- 多个空格只显示一个 -->
        <i class="icon icon-sign"></i> icon-sign
        <br/>
        <i class="icon icon-pen" ></i> icon-pen
        <br/>
        <i class="icon icon-search"></i> icon-search
        <br/>
        <img  src="img/icon.svg">
    </div>
</body>
</html>